Used FLUKE 931B #9126218 for sale

FLUKE 931B Vacuum Tube Tester is a versatile and highly accurate electronic test equipment used to evaluate the operational performance of vacuum tubes. This tester offers an array of very precise test and measurement features that allow users to evaluate a broad range of vacuum devices. 931B includes both basic and more advanced testing capabilities, such as the ability to measure plate current, grid current, mutual conductance, microphonics, inter-element stray capacity, filament voltage and emission. It also handles pulse operation up to 540 pulsations per second. Additionally, this tester features a switchable 225-9500Ω output impedance and extended grid bias ranges, as well as test current and voltage options. The unit comes with a standard 2.5 mm triode socket and an optional high-voltage socket to accommodate special tests on octal socket tubes. In order to ensure accuracy, FLUKE 931B is equipped with a 1% high voltage accuracy and, together with its low- drift internal power supplies and wide, stable operating temperature, offers superior performance even in the most demanding environments. The tester is designed with a digital tube readout display and analog rotary selector, enabling quick and easy setup. Furthermore, the unit is extremely safe to use, with the inclusion of a low AC leakage current and a low safety voltage capability, ensuring complete protection for users. 931B is ideal for testing control grids, vacuum tubes, transistors, digital chips, and other vacuum-sensitive components used in industry and laboratory settings. It is a robust, reliable, and cost-effective testing solution, offering users reliable measurements, fast operation, and easy setup. Its flexible design makes it a great choice for servicing a wide range of electronic components.